Free Image Resizer

Resize, compress and convert images online. Free, fast and private.

🔒 Browser-based processing · Images are not uploaded by this tool
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1. Upload images

Selected files0
Current image size—
Original dimensions—
Estimated output—

2. Choose size

3. Compress & format

85%

Best-effort maximum, not an exact file size. If the image naturally exports smaller, it stays smaller; the tool will not add fake data or enlarge the image just to reach the target.

Preview

Original preview appears here.
Optional: turn on crop, then drag over the photo to select an area.

Result preview

Process an image to see the result.
Final dimensions—
Final file size—
Size reduction—
Output format—

For multiple images, each processed file will appear in the list with its own download button.

Free Image Resizer Online – How to Resize, Compress & Convert Images

Free Image Resizer Online – Resize Images in Pixels, CM or Inches

Use this free online image resizer to change photo dimensions, compress image file size, and convert images to JPG, PNG or WebP. It is useful for website images, online forms, documents, profile photos, signatures and everyday image editing. You can resize by pixels (px), centimeters (cm) or inches (in), choose the resolution in DPI, preview the result and download the processed image.

How to Resize an Image Online

  1. Upload your photo: Select a JPG, PNG or WebP image, or drag and drop it into the upload area. Each file can be up to 10 MB, and multiple images can be processed in one batch.
  2. Choose the measurement unit: Select Pixels (px), Centimeters (cm) or Inches (in). Enter the required width and height. When using centimeters or inches, the selected DPI is used to calculate the output pixel dimensions.
  3. Keep the original proportions: Leave “Maintain aspect ratio” selected to reduce stretching. Turn it off only when you need exact width and height and understand that the image may look stretched.
  4. Crop if needed: Select “Crop on image” and drag over the preview to choose the area to keep. Clear the crop if you want to resize the full image.
  5. Compress or convert: Choose JPG, PNG or WebP. Adjust quality for JPG/WebP, or enter a target download size in KB. A target file size is best-effort and cannot be guaranteed for every image, especially PNG files.
  6. Process and download: Click “Process image(s)”, check the result preview and final dimensions/file size, then download the image. For batch uploads, use the individual download button for each processed file.

Pixels, Centimeters, Inches and DPI: What Is the Difference?

Pixels (px) describe an image's digital dimensions. They are commonly used for websites, apps and online forms. Centimeters (cm) and inches (in) describe physical print size. The conversion depends on DPI (dots per inch): a higher DPI produces more pixels for the same physical size. For example, changing DPI affects the pixel dimensions calculated from cm or inches; it does not automatically improve the detail in a low-resolution original photo.

If a form asks for an image in centimeters or inches, select that unit and set the required DPI. If it asks for pixel dimensions, select Pixels (px). Always use the exact dimensions and file-size limits stated by the receiving website or official notification.

How to Reduce Image Size in KB

To make an image file smaller, choose JPG or WebP and lower the quality slider, or enter a target size such as 100 KB in the target download size field. If the result is still too large, reduce the pixel dimensions or lower quality further. The final size depends on the original photo, colors, details, output format and selected dimensions. PNG is useful for graphics and transparency, but it may not compress to very small file sizes.

Supported Image Formats

  • JPG/JPEG: Suitable for photographs and generally produces smaller files. Transparent areas are filled with white.
  • PNG: Useful for graphics and images that need transparency; file sizes may be larger.
  • WebP: A modern web image format that can provide efficient compression. Browser and destination-site support may vary.

Privacy and Safe Use

Image processing happens locally in your browser on this page; the tool does not upload your selected images to its server. Avoid closing the page before processing and downloading your results. For passport photos, signatures, recruitment forms or other official applications, check the latest official instructions for image dimensions, background, format, DPI and maximum file size before submitting.

Frequently Asked Questions

Is this image resizer free?

Yes. You can use the image resizer on this page without installing desktop software.

Can I resize a photo in cm or inches instead of pixels?

Yes. Choose Centimeters (cm) or Inches (in), enter the required dimensions and set the DPI. The tool converts those measurements into pixel dimensions for processing.

Can I resize and compress multiple images at once?

Yes. Select multiple supported images together, process them in a batch and download each result separately.

Will the target KB size always be exact?

No. Target size is a best-effort maximum, not an exact size. Smaller files are left smaller; the tool does not artificially inflate them. If an image remains larger than the requested limit, try reducing its dimensions or quality, or choose another format.

Privacy note: this page processes images in your browser. Recruitment and government application requirements can vary; follow the latest official notification rather than relying only on example dimensions.